Sclerolobium chrysophyllum Poepp.
Common Name: Tachi Vermelho
Tachigali chrysophylla is a tree with a dense, ovate crown; it can grow up to 30 metres tall[
The tree is harvested from the wild for local use as a source of wood.
S. America - Amazonian Peru, Ecuador, ?Colombia, Venezuela, Amazonian Brazil
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The wood is heavy, rather coarse and readily subject to decay. It has good dimensional stability[
], It is used for small carpentry items[
], and has potential for use in construction and furniture making[
The wood is used for fuel[
The trees of many members of this genus yield a wood suitable for light construction, known in the trade as 'tachi'[
]. We do not have any more specific information for the wood of this species, but a general description of tachi wood is as follows:-
The wood is light brown; it is clearly demarcated from the 3 - 6cm wide band of sapwood. The texture is medium; the grain straight or slightly interlocked. The wood is light to moderately heavy; soft to moderately hard; not very durable in one report[
], durable in another[
]. It seasons at a nornal rate with only a slight risk of distortion, but a high risk of checking; once dry it is poorly stable in service. It is fairly easy to work, but sawn surfaces can be somewhat fuzzy - stellite-tipped and tungsten carbide tools are recommended; nailing and screwing are good, but require pre-boring. The wood is used for purposes such as interior panelling and joinery, furniture components, light carpentry, crates and boxes[
Seed - it has a hard seedcoat and benefits from scarification before sowing to speed up germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing. Sow the treated seed in a sunny position in a nursery seedbed. A germination rate of less than 50% can be expected even from treated seed, with the seed sprouting within 20 - 35 days[
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